Формулы для приблизительного рассчета площади парусов (от Harken)
Mainsail = (P x E) / 2 (add 10% for racing
mains)
155% Genoa = (( J x I ) / 2) x 1.65
135% Genoa
= (( J x I ) / 2) x 1.44
100% Jib = ( I x J ) /
2
Racing Symmetrical Spinnaker = 1.8 x J x I
Racing
Asymmetrical Spinnaker = 1.8 x J x I
Cruising Asymmetrical
Spinnaker = 1.65 x J x I
Определения
"P" is the luff length of the
mainsail, measured along the aft face of the mast from the top of
the boom to the highest point that the mainsail can be hoisted or
black band.
"E" is the foot length of the
mainsail, measured along the boom from the aft face of the mast to
the outermost point on the boom to which the main can be pulled or
to the black band.
"I" is measured along the front of mast from the
genoa halyard to the main deck. The main deck is where the deck
would be if there were no deckhouse.
"J" is the base of the foretriangle measured
along the deck from the headstay pin to the front of the mast.
"JSP" is the length of the spinnaker pole or the
distance from the forward end of the bowsprit (fully extended) to
the front face of the mast.
"ISP" is measured from the highest spinnaker
halyard to the deck.
"PY" and "EY" are, respectively
the luff length and foot length of the mizzen of a yawl or ketch
measured in the same way as for the mainsail.
"IY" is the measurement from the staysail
halyard to the deck.
"JY" is the measurement from the staysail stay
to the front face of the mast.
"LP" is the shortest distance between the clew
and the luff of the genoa.
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